6498254977 has 4 divisors (see below), whose sum is σ = 6498588096. Its totient is φ = 6497921860.

The previous prime is 6498254969. The next prime is 6498254993. The reversal of 6498254977 is 7794528946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6498254977 - 2³ = 6498254969 is a prime.

It is a super-2 number, since 2×6498254977² = 84454635492210541058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6498254927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135349 + ... + 176962.

It is an arithmetic number, because the mean of its divisors is an integer number (1624647024).

Almost surely, 2^6498254977 is an apocalyptic number.

It is an amenable number.

6498254977 is a deficient number, since it is larger than the sum of its proper divisors (333119).

6498254977 is a wasteful number, since it uses less digits than its factorization.

6498254977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333118.

The product of its digits is 30481920, while the sum is 61.

The square root of 6498254977 is about 80611.7545833112. The cubic root of 6498254977 is about 1866.0885553120.

The spelling of 6498254977 in words is "six billion, four hundred ninety-eight million, two hundred fifty-four thousand, nine hundred seventy-seven".